package com.sky.service.impl;

import com.sky.context.BaseContext;
import com.sky.dto.ShoppingCartDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.ShoppingCart;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.mapper.ShoppingCartMapper;
import com.sky.service.ShoppingCartService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class ShoppingCartServiceImpl implements ShoppingCartService {
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    @Autowired
    private DishMapper dishMapper;

    @Autowired
    private SetmealMapper setmealMapper;
    @Override
    public void add(ShoppingCartDTO shoppingCartDTO) {
        ShoppingCart shoppingCart = new ShoppingCart();
        BeanUtils.copyProperties(shoppingCartDTO,shoppingCart);
        Long userId = BaseContext.getCurrentId();
        shoppingCart.setUserId(userId);

        List<ShoppingCart> shoppingCarts = shoppingCartMapper.findCurrentShopping(shoppingCart);
        if (shoppingCarts != null && shoppingCarts.size() > 0){
            ShoppingCart shoppingCart1 = shoppingCarts.get(0);
            shoppingCart1.setNumber(shoppingCart1.getNumber() + 1);
            shoppingCartMapper.update(shoppingCart1);
        }else {
            Long dishId = shoppingCartDTO.getDishId();
            Long setmealId = shoppingCartDTO.getSetmealId();

            if (dishId != null){
                Dish dish = dishMapper.get(dishId);
                shoppingCart.setName(dish.getName());
                shoppingCart.setImage(dish.getImage());
                shoppingCart.setAmount(dish.getPrice());
            }

            if (setmealId != null){
                Setmeal setMeal = setmealMapper.getSetMealById(setmealId);
                shoppingCart.setName(setMeal.getName());
                shoppingCart.setImage(setMeal.getImage());
                shoppingCart.setAmount(setMeal.getPrice());
            }
            shoppingCart.setNumber(1);
            shoppingCart.setCreateTime(LocalDateTime.now());
            shoppingCartMapper.add(shoppingCart);
        }
        }

    @Override
    public List<ShoppingCart> get() {
        Long currentId = BaseContext.getCurrentId();
        return shoppingCartMapper.get(currentId);
    }

    @Override
    public void clean() {
        Long currentId = BaseContext.getCurrentId();
        shoppingCartMapper.clean(currentId);
    }
}
